On Thu, Jan 12, 2017 at 02:22:21PM +0200, Joonas Lahtinen wrote: > On ke, 2017-01-11 at 20:18 -0800, Michel Thierry wrote: > > From: Arun Siluvery <arun.siluv...@linux.intel.com> > > > > In preparation for engine reset work update this parameter to handle more > > than one type of reset. Default at the moment is still full gpu reset. > > > > Cc: Chris Wilson <ch...@chris-wilson.co.uk> > > Cc: Mika Kuoppala <mika.kuopp...@linux.intel.com> > > Signed-off-by: Arun Siluvery <arun.siluv...@linux.intel.com> > > Signed-off-by: Michel Thierry <michel.thie...@intel.com> > > <SNIP> > > > @@ -113,8 +113,8 @@ MODULE_PARM_DESC(vbt_sdvo_panel_type, > > > "Override/Ignore selection of SDVO panel mode in the VBT " > > > "(-2=ignore, -1=auto [default], index in VBT BIOS table)"); > > > > -module_param_named_unsafe(reset, i915.reset, bool, 0600); > > -MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)"); > > +module_param_named_unsafe(reset, i915.reset, int, 0600); > > +MODULE_PARM_DESC(reset, "Attempt GPU resets (0=disabled, 1=full gpu reset > > [default], 2=engine reset)"); > > Would it make sense to have this as bitflags? So you could disable full > GPU reset but still enable engine reset?
As it stands from the code currently, not really. The per-engine reset (conceptually) does the same operations as the full reset, just under an engine mask. If we have issues with a global reset, those should plague per-engine reset as well. I would like to keep the user options to a minimum. If our only usecase for this parameter is testing, let's develop those as kselftests. Though disabling reset will still be desired to w/a the occasional hw death. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
